Re: request for programming advice

[Paul]

I second the suggestions to check out VexFlow and Verovio.  Some 
differences being that Vexflow is written in javascript and Verovio is 
"compiled" from C++ to javascript.  The focus of the folks behind 
Verovio is encoding music in digital formats for broadly 
academic/scholarly purposes.  Those behind VexFlow seem more focused on 
tablature and browser-specific uses.

Just for curiosity's sake I'll mention how I've used LilyPond to produce 
SVG images for an alternative notation system (Clairnote) and then used 
that SVG data as raw materials that are manipulated by javascript to 
dynamically draw different scales and intervals, see 
http://clairnote.org and http://clairnote.org/learn/

Cheers,
-Paul